摘要
以砂糖橘为试材,研究了5年生和9年生树幼果期(坐果期至果实膨大期)单果干重,果实氮、磷、钾含量和单果氮、磷、钾累积量的变化。结果表明,5年生树幼果期单果干重显著大于9年生树;两种树龄果实氮、磷含量均随着果实的生长发育明显降低,而钾含量则先降低再升至恒定水平;单果氮、磷、钾累积量均随着果实的生长而迅速增加,5年生树钾累积量显著大于9年生树。
Variation of single fruit dry weight, N, P, K contents and their single fruit accumulation of young fruits in fruit - set and fruit enlargement periods between 5 - year - old and 9 - year - old Citrus reticulate were studied. The results showed that dry weight of every fruit in 5 - year - old trees was heavier than that of 9 - year - old ones. The contents of N and P decreased significantly with fruit development in the two tested trees. However, the content of K decreased firstly, and then it increased and kept at a stable level. The accumulation of N, P and K increased remarkably with fruit enlargement development. K accumulation in fruit of 5 -year -old trees was greater than that of 9 - year - old ones.
出处
《福建果树》
2009年第1期11-14,共4页
Fujian Fruits
基金
国家自然科学基金(30671235)
广东省自然科学基金重点项目(06105477)
农业部"948"项目(2003-Z91)
关键词
砂糖橘
幼果期
氮
磷
钾
Citrus. reticulate
Young fruit period
N
P
K
